User Manual - Page 578

For V90.

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WHEELS AND TYRES
* Option/accessory.
576
WARNING
Apply the parking brake and set the
gear selector in Park position (P).
Chock the wheels standing on the
ground using solid wood blocks or
large stones.
Check that the jack is not damaged,
that the threads are thoroughly lubri-
cated and that it is free from dirt.
Check that the jack is resting on a firm,
level surface that is not slippery and is
not slanted.
The jack must be correctly attached in
the jack's bracket.
Never position anything between the
ground and the jack, nor between the
jack and the car's jacking point.
Passengers must leave the car when it
is raised on the jack.
If a wheel must be changed in a traf-
ficked environment, passengers must
stand in a safe place.
Use a jack designed for the car when
changing tyres. Use supports to secure
the car for all other work.
Never crawl under the car or reach
under with a part of your body when it
is raised on a jack.
The car needs to be raised high enough so
that the wheel to be loosened can roll freely.
1. Clean the surfaces between wheel and
hub.
2. Put on the wheel. Tighten the wheel bolts
thoroughly.
Do not use lubricant on the threads of the
wheel bolts.
3. Lower the car so that the wheels cannot
rotate.
4. Tighten the wheel bolts crosswise. It is
important that the wheel bolts are tight-
ened properly. Tighten to 140 Nm
(103 foot-pound). Check the tightening
torque with a torque wrench.
5. Refit the plastic caps on the wheel bolts.
6. Check the tyre pressure and save the new
tyre pressure in the system for tyre pres-
sure monitoring*.
WARNING
The wheel bolts may need to be re-tight-
ened several days after the change. Tem-
perature differences and vibration may
mean that they are not attached equally as
tightly.
NOTE
After a tyre has been inflated, always
refit the dust cap in order to avoid
damage to the valve from gravel, dirt,
etc.
Only use plastic dust caps. Metal dust
caps can rust and become difficult to
unscrew.
Related information
When changing wheels (p. 571)
Raise the car (p. 613)
Jack* (p. 572)
Tool kit (p. 571)
Removing a wheel (p. 573)
Saving a new tyre pressure in the monitor-
ing system* (p. 568)
Checking tyre pressure (p. 564)
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